Move LowerCaseEqualsASCII to base namespace

base/strings/string_util.cc

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "base/strings/string_util.h"
 
 #include <ctype.h>
 #include <errno.h>
 #include <math.h>
 #include <stdarg.h>
@@ skipping 402 matching lines @@
 
   while (char_index < src_len) {
     int32 code_point;
     CBU8_NEXT(src, char_index, src_len, code_point);
     if (!IsValidCharacter(code_point))
       return false;
   }
   return true;
 }
 
-}  // namespace base
-
 template<typename Iter>
 static inline bool DoLowerCaseEqualsASCII(Iter a_begin,
                                           Iter a_end,
                                           const char* b) {
   for (Iter it = a_begin; it != a_end; ++it, ++b) {
-    if (!*b || base::ToLowerASCII(*it) != *b)
+    if (!*b || ToLowerASCII(*it) != *b)
       return false;
   }
   return *b == 0;
 }
 
 // Front-ends for LowerCaseEqualsASCII.
 bool LowerCaseEqualsASCII(const std::string& a, const char* b) {
   return DoLowerCaseEqualsASCII(a.begin(), a.end(), b);
 }
 
@@ skipping 12 matching lines @@
                           const char* b) {
   return DoLowerCaseEqualsASCII(a_begin, a_end, b);
 }
 
 bool LowerCaseEqualsASCII(const char* a_begin,
                           const char* a_end,
                           const char* b) {
   return DoLowerCaseEqualsASCII(a_begin, a_end, b);
 }
 
+bool LowerCaseEqualsASCII(const char* a_begin,
+                          const char* a_end,
+                          const char* b_begin,
+                          const char* b_end) {
+  while (a_begin != a_end && b_begin != b_end &&
+         ToLowerASCII(*a_begin) == *b_begin) {
+    a_begin++;
+    b_begin++;
+  }
+  return a_begin == a_end && b_begin == b_end;
+}
+
 bool LowerCaseEqualsASCII(const char16* a_begin,
                           const char16* a_end,
                           const char* b) {
   return DoLowerCaseEqualsASCII(a_begin, a_end, b);
 }
 
+}  // namespace base
+
 bool EqualsASCII(const string16& a, const base::StringPiece& b) {
   if (a.length() != b.length())
     return false;
   return std::equal(b.begin(), b.end(), a.begin());
 }
 
 bool StartsWithASCII(const std::string& str,
                      const std::string& search,
                      bool case_sensitive) {
   if (case_sensitive)
@@ skipping 546 matching lines @@
 }
 
 }  // namespace
 
 size_t base::strlcpy(char* dst, const char* src, size_t dst_size) {
   return lcpyT<char>(dst, src, dst_size);
 }
 size_t base::wcslcpy(wchar_t* dst, const wchar_t* src, size_t dst_size) {
   return lcpyT<wchar_t>(dst, src, dst_size);
 }